yes they are definetly worth getting. a single 1500.1 will power any sub amazingly on the market no matter the rms. around 3000rms at 1 ohm.
so what does the 2000.1 do ive been thinking about getting some for two ssx 18" subs but right now ive been talking to treo on the phone because the closest deler is in Omaha, NB. and i live in Des Moines, IA so i cant relley go chack them out with out driving 400 miles